hi,i think 4 sheet sets will be plenty,you'll probably be washing every day,rain,hail or shine.I did the snuggle bed option with 2 of mine,put it into a cot.I have seen in k-mart a similiar idea to the snuggle bed,i would think it would be a better option for sleeping in bed with you,i think it was a fisher-price produoct,it was smaller than snuggle bed,had a built-in night light,it was advertised as a co-sleeping product.I found sleeping bags great for mine,you can get light-weight ones as well as heavy ones for cooler nights.I think half a dozen bunny rugs/wraps is enough.Glad to see your ticker moving along...Keep your cot sheets for pre-school days,they fit well on the beds they use there for rest time