Those swimming costumes were bloody awful in my opinion. Neither of them fitted the boys right!No never gone to bed in dirty clothes, if they fall asleep I will change them while they are asleep. And I will always take more than 1 swimming costume for us all as it gets filthy especially if you are away for 10 days suncream and swim nappies make it gross and to be quite frank if you can afford and all inclusive in tenerfife for 10 days you can afford 2 pairs of primark swim costumes for the kids.