hi
@Margeaux
it may be that the change in environment is confusing your husband more .... and don't be concerned about letting the hotel staff know about the 'accident', they will have met this before and their cleaning routines will cover it
however you do say that this happened at home too, which will be disturbing your nights ... that is when home carer visits cannot help ... and for you, having wakeful nights is going to impact on your work during the day
you have day care in place to cover the days you work (4 I believe) and increasing that plus adding in home care visits on all days, so you are given time away from the hands on care, may help .... or consider a live-in carer/PA, though that's expensive (remember any payment of care fees should come from your husband's money only ... if night's are disturbed, look into applying for higher rate Attendance Allowance)
you say you cannot leave your husband on his own, so even when you are not working, you are not able to relax ... and that wouldn't change were you to give up work (which I do not recommend; you need and have a right to a life of your own)
to be honest, when the confusion causes disturbance at night, so the carer isn't getting enough sleep to cope during the day, is one factor that often signals it's time for the support that residential care provides .