Union 3-In-1 Greenguard Gold Certified Convertible Crib

Last updated date: August 5, 2020

DWYM Score
9.1

Union 3-In-1 Greenguard Gold Certified Convertible Crib

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We looked at the top Cribs and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Crib you should buy.

Overall Take

Find a simple, modern-looking crib with the best value in this 3-in-1 convertible crib. It is a lightweight option that can easily be moved around a room, but durable enough to stay together very well. The pinewood material is a bit soft, but for baby it is perfect. Consumers love the ease of assembly of this crib. In our analysis of 253 expert reviews, the Union Union 3-In-1 Greenguard Gold Certified Convertible Crib placed 5th when we looked at the top 14 products in the category. For the full ranking, see below.

Editor's Note August 5, 2020:
Checkout The Best Crib for a detailed review of all the top cribs.

Expert Summarized Score
8.9
33 expert reviews
User Summarized Score
8.6
969 user reviews
Our Favorite Video Reviews
What experts liked
The crib itself is also very lightweight. I could move it around myself even at six months pregnant! That being said it is still sturdy feeling and doesn’t worry me in the least!
- Baby Box Lab
August 14, 2016 | Full review
Basic and practical pine wood crib. Meets safety standards and has 4 level mattress adjustment. Convertible for toddler use. Affordably priced.
- BestReviews
It was very easy for my husband to assemble and for it to be a lightweight crib, it is very sturdy.
- Happy Baybees
February 5, 2018 | Full review
Adjustable mattress support
- Baby's Little Place
May 24, 2018 | Full review
This crib is made of New Zealand pine and it has 4 options for adjusting the level of the mattress as your child grows and learns to stand or climb.
- BoosterWP Reviews
October 17, 2019 | Full review
It can convert into daybed and toddler bed (and hence 3-in-1 in the name!), and it's also unusual to find fun color options (like blue lagoon and yellow sunshine) at this price
- Good Housekeeping
August 6, 2019 | Full review
It’s sturdy and strong and I have to say it again, it is impressively affordable offering proof that cheap convertible cribs can be great.
- Travel Crib Reviews
This convertible crib is a great one for your baby to transition into toddler-hood. It comes in 5 fun colors and uses lead free, non-toxic, phthalate-free paint so you won’t have to worry when baby starts teething.
- Family Living Today
February 20, 2019 | Full review
Diversified crib. You may change it into a daybed and a full-size bed.
- My Best Cribs
April 11, 2017 | Full review
Finished with non-toxic paint – lead and phthalate safe
- Net Parents
Meets all safety standards. Hence, it removes your anxiety for the little one’s safety.
- Kidz Geek
Convertible design for convenience
- The Z8
It’s an easy-to-assemble, lightweight crib that has 4 adjustable mattress positions that will grow with your baby.
- A Web To Know
The Union 3-in-1 Convertible Crib comes with essential assembly items through which you can conveniently assemble the kit and make it a crib by yourself.
- Top 10 Buddy
It features non-toxic materials, no lead, and phthalate. Rails are fixed, and New Zealand pine is used to construct it.
- Listderful
June 14, 2016 | Full review
This Union 3-in-1 Convertible Crib has four adjustable mattress levels. Adjusting it from the top moving downwards, you can use the crib for your child’s few years as he or she grow
- Toodrie
It has four height adjustments modes to accommodate your baby’s growth and mattress height
- Paramatan
October 9, 2019 | Full review
Parents like that this crib is very easy to assemble. The style, size, and affordable price are also perks. It’s ideal for people who live in apartments or small homes (or large homes with lots of stuff).
- Parenting Passage
September 5, 2019 | Full review
The finish is no-toxic, lead safe and phthalate safe so you do not have to worry about any off-gassing.
- Heavy
May 14, 2019 | Full review
Adjustable-height mattress. The mattress adjusts to four different positions, allowing it to easily accommodate parents of different heights and babies of different ages at different developmental stages.
- Review Lab
It has a four adjustable mattress level which allows you to adjust as your child grows.
- HQ Review
With its relatively inexpensive price and easily adjustable mattress levels, it is easy to see why so many parents choose this crib over others. This is an affordable baby crib that you would have no issues with if you put it in your nursery.
- My Babies Planet
Union 3 in1 mini crib has been tested at several testing facilities and has been ASTM and CPSC certified. Plus, it does not contain harmful chemicals, and its construction is from CARB II certified New Zealand pine wood.
- Temper and Tantrum
The height under the crib is approximately 5 to 6 inches, which is plenty of space to store items underneath. The side panels are nice and high, and the crib is very attractive.
- The Changing Tables
May 31, 2019 | Full review
The union crib is easily convertible anytime and converts to a day bed and toddler bed that is furnished with a standard size mattress.
- Baby Ambition
Its no-frills design fits in easily with any décor, but its function is top notch, with 4 adjustable mattress levels. You can also convert this crib into a daybed or a toddler bed as needed (conversion kit sold separately).
- A Lovely Lark
July 28, 2019 | Full review
Four adjustable mattress levels.
- All Kids Reviews
November 15, 2017 | Full review
It has four adjustable bed levels and fixed side rails, providing safe and comfortable sleep for your little one.
- top9rated
September 4, 2019 | Full review
Solid wood built and high quality
- Best Home Shopping
June 10, 2017 | Full review
Strong, Sturdy, solid wood built and high-quality modern looks design.
- Best Care Life Reviews
Customers love the fact that this crib can fit into limited spaces. The design of this particular crib is slim and sleek, which is perfect for parents who like furniture that could fit anywhere.
- Parenting and Baby Needs
The Union 3-in-1 Convertible Crib will last well past the infant phases owing to its ability to convert from a crib to a toddler bed and then to a daybed
- Beginner Baby Care
It has 4 adjustable mattress settings so that you can use it at your convenience.
- Better Sleep Baby
What experts didn't like
One thing that I noticed is how easy it is to scratch the paint on this crib. I noticed it when I was first putting it together and accidentally scratched a bit of it.
- Baby Box Lab
August 14, 2016 | Full review
A few reports of an odor upon arrival and of paint imperfections
- BestReviews
Paint Chips Easily
- Happy Baybees
February 5, 2018 | Full review
Visible screws and holes
- Baby's Little Place
May 24, 2018 | Full review
The conversion kits are sold separately from the crib.
- BoosterWP Reviews
October 17, 2019 | Full review
Regular use may get the crib scratched.
- My Best Cribs
April 11, 2017 | Full review
Conversion kit not included and has to be purchased separately
- Net Parents
You have to be careful of the sharp objects while assembling.
- Kidz Geek
Shorter than most crib rails
- A Web To Know
The painting comes off after several months.
- Toodrie
Parents don’t like that the wood chips (though some reviews do mention that “chipping wood” happens on most cribs).
- Parenting Passage
September 5, 2019 | Full review
Does not include conversion kit for full sized bed
- Heavy
May 14, 2019 | Full review
Profile too low for some users. Some reviewers say the low height of the crib is a liability, noting that they felt insecure about using it with an older child.
- Review Lab
It allows a standard fit crib mattress that is sold separately.
- HQ Review
The only negative we could find was the need to purchase and addition conversion kit when converting from daybed to toddler bed.
- My Babies Planet
The base frame has been reported to be very shaky
- Temper and Tantrum
Soft pine wood is easily scratched
- A Lovely Lark
July 28, 2019 | Full review
Paint might chip off on the top rails.
- All Kids Reviews
November 15, 2017 | Full review
It does not come with the mattress so you will have to purchase that separately.
- top9rated
September 4, 2019 | Full review
Toddler bed and full size bed conversion kits not included​
- Best Home Shopping
June 10, 2017 | Full review
The woods can be easily scratchable.
- Best Care Life Reviews
Another concern was the paint chipping off very soon after purchase. This can be pretty dangerous to children especially if they inhaled or ingested some of the paint.
- Parenting and Baby Needs
No mattress included
- Beginner Baby Care
Does not convert to a full-size bed.
- Better Sleep Baby

From The Manufacturer

The Union 3-in-1 convertible crib is a durable and chic staple for the modern nursery. With fixed side rails, non-toxic lead and phthalate-safe finish, and sturdy construction from sustainable New Zealand pine, the Union crib is a safe place for baby to rest easily. The Union crib converts to a day bed and toddler bed (with conversion kit, sold separately), and takes a standard size crib mattress (sold separately). Meets ASTM international and US CPSC safety standards for the utmost safety.

Overall Product Rankings

Delta Children Emery Deluxe 6-In-1 Convertible Crib
1. Delta Children Emery Deluxe 6-In-1 Convertible Crib
Overall Score: 9.7
Expert Reviews: 9
Dream On Me Aden 4-In-1 Convertible Mini Crib
4. Dream On Me Aden 4-In-1 Convertible Mini Crib
Overall Score: 9.2
Expert Reviews: 9
Union 3-In-1 Greenguard Gold Certified Convertible Crib
5. Union 3-In-1 Greenguard Gold Certified Convertible Crib
Overall Score: 9.1
Expert Reviews: 33
Delta Children Canton 4-In-1 Convertible Baby Crib
8. Delta Children Canton 4-In-1 Convertible Baby Crib
Overall Score: 8.9
Expert Reviews: 26
Graco 04530-21F Storkcraft Benton 4-In-1 Convertible Crib
9. Graco 04530-21F Storkcraft Benton 4-In-1 Convertible Crib
Overall Score: 8.7
Expert Reviews: 13
Delta Children Portable Mattress & Mini Baby Crib
10. Delta Children Portable Mattress & Mini Baby Crib
Overall Score: 8.6
Expert Reviews: 26
Dream On Me Violet 7-In-1 Convertible Life Style Crib
11. Dream On Me Violet 7-In-1 Convertible Life Style Crib
Overall Score: 8.6
Expert Reviews: 22
Dream On Me Carson Classic 3-In-1 Convertible Crib
12. Dream On Me Carson Classic 3-In-1 Convertible Crib
Overall Score: 8.4
Expert Reviews: 12
Dream On Me Ashton 5-In-1 Convertible Crib
13. Dream On Me Ashton 5-In-1 Convertible Crib
Overall Score: 8.2
Expert Reviews: 9
Dream On Me Synergy 5-In-1 Convertible Crib
14. Dream On Me Synergy 5-In-1 Convertible Crib
Overall Score: 8.1
Expert Reviews: 5

An Overview On Cribs

The biggest purchase you’ll make after finding out you’re about to become a parent is a crib.

As the days roll closer to bringing your baby home, you will want to prepare in so many ways. There is quite a bit of design effort put into cribs, and they are drastically different between companies. However, finding the best crib is not just a matter of personal style but also of safety. Discover what the experts are saying along with all the safety features to consider when shopping for that perfect crib for your little love.

Safety first when it comes to researching the best baby crib. Several safety features are required of manufacturers to include when designing a crib. These standards are set by the government based on past recalls and baby sleep studies. Manufacturers must abide by the standards or their product cannot be sold in stores.

To name a few safety standards: There cannot be a bigger gap than 2 3/8 inch between slats and corner posts as it has been determined that any bigger can cause entrapment issues for baby. The corner posts should not be higher than 1/16 inch above the end panels. All hardware should be set in securely without sharp screws or nail heads sticking out. Older, used cribs may pose the risk of lead paint so it is highly recommended to either get a lead test or just skip using an old crib. The mattress needs to be a tight fit so baby can’t get caught between the mattress and the slats. (When in the store looking at cribs, do the two-finger test: If you can fit two fingers side-by-side between the mattress and the slats, you need a bigger mattress than what they’ve got in there). Keep the baby’s crib free from all stuffed animals, bumpers and loose-fitting blankets and sheets.

Kate Desmond, a writer and infant safe-sleep expert as well as mom to two young daughters, has spent an enormous amount of time researching the safest and best products for her kids.

“The most important thing to consider when purchasing your baby’s crib is safety,” she says. “Remember, drop-side cribs are no longer deemed safe, so this is a great reason to say no to heirlooms from your mother-in-law. Mattresses are sold independently of cribs so be sure to select one that fits, leaving no gaps, and cover only with a tight-fitting crib sheet. Remember to keep the crib empty of all blankets, pillows and stuffed animals. Babies under one year of age sleep safest alone, on their back, in their crib.”

After learning the safety regulations and hearing from an expert, you know what to look for and can go shopping. One last thing to consider is the size and style of your nursery as this will determine the crib you buy. If you are tight on space, you can consider a combination crib and changing table in one, like the Delta Children Emery Deluxe 6-In-1 Convertible Crib, Babyletto Hudson 3-In-1 Toddler Convertible Crib, Graco Storkcraft Benton 4-In-1 Convertible Crib or the Dream On Me Aden 4-In-1 Convertible Mini Crib.

All of these cribs will be a beautiful addition to a darling nursery of any style.

DWYM Fun Fact

Dating back to just the 19th century, cribs are a relatively new concept. Before cribs, parents co-slept with their babies, mostly because of the simplicity of homes and shelters. Even when cribs were invented, they were more like bassinets or cradles. The reason that cribs, bassinets and cradles were raised off the ground was because it was a common belief that toxic fumes were found below knee level and explosive vapors were found near the ceiling. Iron baby cribs were popular because they were thought to be sanitary and prevent bug infestations including lice, bed bugs and moths. These were not always safe, however, because frequently they were painted with lead paint.

The phrase crib was coined to describe a “slatted, high-sided child’s bed.” However, in Old English it means stall or manger. Now, the word “crib” is additionally used as slang for a person’s house.

The Crib Buying Guide

  • The safest cribs are usually the simplest. Find a crib that doesn’t have drop sides or fancy bed knobs on the corners.
  • Buying new is best because it is more likely that it is up to safety standards.
  • Bring a ruler with you to measure the spaces between the slats when you shop.
  • Baby crib mattresses are also an item to buy new. Many have been recalled for being too soft. Also, when you buy new, you can buy one that fits super snug into your crib with no spaces on any side.
  • Put tight-fitting sheets on your crib.
  • “Most modern cribs require some assembly,” says Desmond, “Just make sure you follow the directions and ask an expert for help when needed.”
  • For the mother’s healing and safety as well as the baby’s safety, you should pay attention to the level of height of the crib mattress. Most cribs have three levels to help parents reach the baby in the early stages but keep a growing baby safe from climbing out later on in their development.
  • Immediately stop using a crib if you notice baby attempting to climb out.