With or Without Reversible Desk, Under Loft Bed Quick & Easy Assembly (Tools & Hardware Included) Safety Tested & Certified Read more. … We are using a 5″ thick foam mattress from IKEA and it just seemed too soft in places. With three 1×3’s eight feet long, I cut six more slats at 39″ and screwed them down just like the others.
https://www.amazon.com/Max-Lily-Loft-Staircase-White/dp/B07YM81LFQ