He only goes to nursery one full day a week, and he used to nap there for 45-60mins which is less than his usual 2-2.5h nap, but enough to keep him going. Now he has stopped napping so is completely knackered by the time it comes to driving home, having tea and the bedtime routine- he can't cope. The next day he is also out of sorts. At nursery they just have mats in a slightly darker room (the 'sensory room') which is open onto the main baby room. I have often marvelled how any of the children sleep there at all!
Any advice?