With your extra time you could use DEILD when you wake up to chain right back into a dream, lucidly.

With just 4.5 hours of sleep per day though (that's insane lol), you'll want to stick with DILD. Question reality regularly through the day. It doesn't matter how much sleep you get, if you build the habit strongly enough, it will reflect in dreamtime. You want to be doing loads of reality checks, but it's important you actually question reality.