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The Kolcraft Pure Sleep Therapeutic 150 is a dual-use crib and toddler mattress built on 150 heavy-gauge steel coils with an extra-firm tight top. Its Perma-Dri cover is waterproof and wipes clean with a damp cloth, and the mattress is GREENGUARD Gold certified for low emissions. It measures 51.63 by 27.25 inches, the standard crib size. At $47.75 at Walmart as of November 8, 2026, it sits at the low end of its recent price range, well below what most coil crib mattresses cost.
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Lowest price we've seen: $47.75 on Nov 8 at Walmart. Tracked across 5 stores since Nov 8.
Rated 4.7 out of 5 from 373 ratings, the Pure Sleep Therapeutic 150 is well received as a low-cost, firm crib mattress. Owners describe it as sturdy and easy to wipe clean, with the main complaints about the noisy waterproof cover and the weight.