Thailand forum

My husband, 16 month old daughter, and I are planning a trip during the first two weeks of May. We are looking for a beach that is toddler-friendly, a place that is around 3000 baht/night or less. We would like to stay in a place where our daughter can sleep separately from us so that we don't have to go to sleep when she does. My husband also wants to do some diving. We'd like to go somewhere that is fairly peaceful but also not too isolated either. Right now we are leaning towards staying in Railay the whole time but are considering a few options:

1) Sunrise Tropical Resort, and staying in one of their villas. If we stayed there, we would put the crib in the bathroom at night, but then this would mean that we couldn't really use it while she is sleeping. Positives are that there is air conditioning and it is cheaper than some of the other midrange options in Railay.
2) One of the less expensive homes at the Railei Beach Club. Our daughter could be in a separate room from us at night, but none of these houses have air conditioning.
3) Skipping Railay entirely and go to Lanta and finding a villa that is cheaper and has what we are looking for in a place. Though from what I have read online, because of the weather patterns in May the beaches aren't as nice in Lanta at that time.

I'd appreciate any suggestions. In the beginning of May, is air conditioning and absolute must? Also, is it true that the beaches in Lanta aren't that nice in May? I have read also that in some areas the restaurants, etc. shut down in the low season too.

We are also open to other locations in the Krabi area if they fit our criteria, and are open to suggestions. Thanks!