Rate my day 1 itinerary in Bangkok (I'm insecure of thinking that its less/incomplete)

Hi, I will be checking-in at Bangkok from 21st of March and checking-out at 23rd of March for my flight to Phuket. Currently, I planned the day 1 itinerary, and needed some reviews which weren't from robots. So, here it is:

DMK Airport to Accommodation (2:30-4:45) -> PS: international travel

Eat at the hotel or any 7/11 or just find a place to eat (4:45-5:20)

Sleep (5:45-12:00)

(after freshening up)
Eat (12:40-1:45)

(travel to Chatuchuk market)
Chatuchuk Market (2:15PM-5:45PM)

travel to dinner cruise (5:45-6:30) -> after considering the traffic
Dinner cruise (7:30-9:30)

Back at hotel by 10:15-10:20 or 11 pm if I consider for any other small activity.

Sleep (11:00 or 11:45)
I am planning to give an early start for the Day 2 for the temple visits.

Any advice/recommendation/fix to the above can be really helpful!!