What types are these two sentences with imperative clauses

Quotes are from The Old Man and the Sea by Ernest Hemingway

Remember, no matter how little you want to, that you must eat him in the morning.

Remember, he said to himself.

I thought the second one would be a complex sentence as it is a similar pattern to direct speech ("Remember," he said. – that would be complex, right?) but I’m not sure anymore, as it feels like imperative clause "Remember" can stand on its own.

Similarly, at first, I thought that the first sentence is complex-compound but if the "Remember" is an independent clause it can’t be. How is it, then?

Thank you