Thinking the time has come to take the sides of DD1 cotbed (2.4yrs) but she normally sleeps in a Grobag(TM)(which she can get herself out of or shuffle round in perfectly well!). What would anyone suggest we do about bedding - is Grobag on a toddler bed OK or should I get a duvet set? Seen some (quite pricey) zip-in bedset things also from Grobag - are these worth the money?