I'm pretty sure you can. Why don't you just email the hotel and ask them?

Yes, bathroom has a sliding door which can be locked from inside.

Yes it is safe to eat, kitchen is to Western Standards, (i got a peek at it!), As a side note, I generally do not eat raw vegetables unless I am at a major hotel as just washing the vegetables does not necessarily clear bacteria off the food.. Fruit with skins, and cooked food is fine...but most raw vegetables are not sanitized/ washed with sanitizing additive, and it is common in SE Asia for farm animals fecal material to be present in the fields... There are reams of common sense information about eating fresh food in developing countries.. Most Westerners are unaware that almost all food that we eat has been dunked in a bath of water that contains bleach (chlorine) or iodine based sanitizers..

Yes,everything was fresh and clean. We had 2 kids with us and they ate everything and they had no problems!

Yes 15-20 minutes to the tempels with tuk tuk. It's a nice ride.