Yes, it's all this evening light, I HATE summer for this reason, it's my most depressing time of year, overstimulated and exhausted at the same time, it's horrible.
I have blinds inside the window frame, blackout material stuck to the window frame with Velcro and masking tape, blackout curtains on top taped down the sides to the wall and I still need to wear an eye mask for the light that gets through the gaps will wake me up and when it doesn't get really dark until midnight then starts getting light again at 03:30 it's just horrendous.
Can't wait for summer to be over.
I'm told my ideal sleeping environment would be a coffin.