How to put people at ease?

My boyfriend has been really good about my epilepsy and how I have to be careful when doing certain things, he looks out for triggers more than I do! But recently he’s been waking me up in the night to check that I haven’t had a seizure. For context I am over a year seizure free and have never had any proof that I’m having seizures in my sleep. What can I say or do that will make him less worried? It makes me feel bad because he’s obviously scared that somethings going to happen while he’s asleep and I don’t want him to always be scared/worry about me.