You'll need to bring :
Cell phone - no phone connected

All food and drink requirements.
Personal hair shampoo/conditioner, insect repellent, sun screen etc.
A torch per bedroom used, in case of power cuts/emergencies.
For longer stays - washing machine powder (top loading).

You won't need to bring :
Bedding or bed linen, bath towels or tea towels.
Washing up liquid.
Toilet paper.
Any cutlery, crockery or cooking utensils.