My DS has Herr Hare the bunny, who goes to all new places with us and ALWAYS is there for nap-times, even at nursery. His sleep is better... unless he can't find Herr Hare at night and then he needs us to give him his bunny back!

Sorry, that was an aside, but if you do go down this route (and I know it works for a lot of people) remember to buy TWO toys at the time and rotate them - so every time you wash the bedding, wash the toy and give the spare one. That way if one is lost you have one that will be accepted. We have a new Herr Hare tucked away, but got him just a couple of months ago and he's so new and soft and colourful! Not going to fool DS for a minute so we're careful with Herr Hare and where he can go.