I'm sure someone will be able to answer with specifics, and if they don't I can point you to some other forums which will, but living in PB, I am well aware that the supermarkets do stock plenty of baby items which are just like the ones you are used to, albeit different names. For example, the disposable nappies are Dodot. PB not only caters for many visitors with your needs, but is a town of over 10000 residents, who need them for themselves. The main supermarket in the back of the middle of the town is Hiperdino, and the hotel can give you directions. There are also Spars and other smaller supermakrets analogous to Tesco Express near to you.
Try Googling the hotel; I did and came up with this review:
"We have just returned from the Papgayo Arena and after only 1 day vowed we would go back. This is the ideal hotel for familes. We had 2 babies in our party aged 4 and 7 months and the staff were brilliant with them. It especially helped having the fridge in the room. Also if you are travelling with babies be aware don't do what we did which was load up with sterilising solution etc as you can hire all of this equipment there.
I have never been to a hotel before where everything was cleaned so regularly. The pool was scrubed every morning even the steps into the pool where taken off to scrub behind them!
Food was excellent always something for everyone Chinese could have been better not in quality but in choice of dishes. The main international restaurant was quite large and sometimes felt like a dining hall but the Italian restuarant was adjacent and much more intimate and you could eat food from either the Italian or International selection so we tended to eat in there most nights as it had more atmosphere. Drinks were all excellent including alcoholic. We stayed at an all inclusive in Barbados last Novemeber and it was not a patch on this hotel in any area. Would deffinately recommend to anyone."
See
http://www.holiday-truth.com/holiday_tr ... %20Resort/