plywood snags mattress
When lifting the mattress to access storage underneath, the rough plywood deck under the mattress would snag the mattress as the deck and mattress were raised. I bought a gallon of ice cream in a square plastic bucket, ate all of it, then cut two bottom corners from the bucket. I tacked and Gorilla taped them to the corners of the plywood to leave smooth, slightly rounded corners. If anyone else wants to try it, let me know; I'll eat the ice cream.