I researched low loft beds for six months before finally purchasing this one. I worried that the height would be too tall for my three-year-old. After a couple of practice runs going down the ladder, he's a pro, and I'm less worried. We bought an 8 in. mattress which works perfectly and leaves plenty of rail space to keep him safe. My husband put together the bed. He said there were lots of parts, but everything, including extra screws, were included, and the directions made it simple to construct. We both are extremely pleased with how sturdy the bed is. I'm not a small woman, and I've climbed all over the bed while decorating his room without it wobbling. I love that there is enough space beneath the bed for a 30 in. bookcase, a bean bag, and more! My older son is now jealous, and we may be purchasing another low loft bed for his room.