Kolcraft Pure Sleep Therapeutic 150 Crib Mattress

Best Coil Spring Crib Mattress

The Kolcraft Pure Sleep Therapeutic 150 Crib Mattress is a coiled mattress with some of the best crib mattress reviews. The Kolcraft is entirely waterproof and easy to clean due to its water-resistant cover. The 150 in the mattress’s name comes from the fact that the mattress contains 150 coils to add extra support and create a firmer mattress for the baby. The design of this mattress has been awarded a Greenguard certification for its health and safety standards.

Kolcraft Pure Sleep Therapeutic 150  Crib Mattress


The design of the Kolcraft Pure Sleep Therapeutic 150 Crib Mattress is mainly focused on the firmness and overall health standard of the materials. The core of the mattress consists of 150 heavy gauge steel coils that keep the mattress firm and well-shaped for the duration of its lifetime. Though firm, the mattress was designed to remain comfortable for your baby to sleep well. The solid design also employs the use of hypoallergenic materials and lowered chemical use in the materials, making it a safer and healthier choice of mattress. Thus this is rated as one of the top crib mattresses.


From a practical standpoint, I found this mattress easy to take care of, especially when a late-night clean-up session was in order. A quick wipe down with a damp cloth and a possible mattress rotation for good measure was all that was required to get my child back down and settled to sleep for the rest of the night. I didn’t even need to worry myself about liquid seeping into the mattress because the waterproof covering prevents that sort of thing from happening.

Meets Standards & Security

It is recommended that the mattress your baby sleeps on is firm and flat to help with the prevention of SIDS, suffocation risks, and the baby’s general growth. The Kolcraft meets these recommendations admirably by creating a mattress that is firm and will remain thus for years to come. In addition, the mattress emits no allergens or harsh chemicals, which can contribute to illness. The health of your baby and its safety while sleeping and resting in their crib was of the utmost importance to Kolcraft when this mattress was designed.


The Kolcraft Pure Sleep Therapeutic 150 Crib Mattress sticks with your child, even when they have graduated from a crib to a toddler bed. I found this an advantage because my son didn’t have to transition to a new bed and a new mattress. This made the change much smoother because he was used to the feel of his old mattress.

The Good

  • Firm, but not hard, so it is comfortable to sleep on
  • Waterproof cover that cleans easily and quickly
  • Fits cribs tightly with no gaps
  • The thickness speaks to its durability and quality of construction
  • Cheap price
  • Easily transitions into a toddler bed for longevity of use

The Bad

  • Some customers have issues with the mattress being “springy” or “bouncy”
  • Some consider the mattress too soft for an infant, but this is based on personal perceptions
  • There are some reports that the springs can be felt through the mattress materials
  • There are claims that the waterproof covering gives off an odor in new mattresses. This has not been the experience of every customer (airing out any new mattress for a period of time is recommended before use)

Bottom Line

The best crib mattress for your baby is often a relative decision. My main concern was the safety of my baby when I was looking for a mattress. The Kolcraft Pure Sleep Therapeutic 150 Crib Mattress was one of the best coil spring mattresses that sounded comfortable and durable.

The cost was also a big incentive, as there are plenty of other necessities that I needed for my child that was even more expensive. I was overjoyed that this mattress would also follow my child into his toddler bed, so I can get even more for my money.

If you are still not convinced, head over to Amazon.com to see those happy customer reviews.