What a perfect guest bed! I was looking for a daybed to create a ‘couch’ for my officeguest room that would also double as a bed. The twin size is pretty roomy but when the trundle slides out and pops up, it makes a king size which is great for 2 guests! The building instructions indicated it would take an hour and a half, which it only took my husband and I an hour! The pop up trundle hooks into place but there’s an inch gap which can be uncomfortable when the twin mattresses slide apart a bit. I bought some cheap memory foam mattresses that are 6 inches due to a budget, but I’d recommend 8-12 inch ones to increase comfort. You can see how much room there is on the trundle with the 6 inch mattress. If you’re looking for a space saving guest bed I’d definitely recommend this one!