Singulair
"Started taking  generic Singulair  on 7/26/17 by 8/02/17 I started having vivid dreams only at bedtime and every night until today when I called my doctor and got the medication changed. For just under a week every single night I couldn't tell if I was awake or dreaming. The first night it happened I was cuddled up with my husband sleeping on his chest and I woke myself up snoring when I apologized to my husband for snoring so loud he said I wasn't snoring. I fell asleep again within ten minutes and thought I was still awake and I swore I saw a spider on the sheets by my face on my husband. I jumped up yelling spider woke myself up and freaked out my husband because there was no spider, I had dreamt the whole thing. It only got worse"