I would certainly give it a run, say at 25 mg on an empty stomach before breakfast, then 25 mg before bed. I've been on that protocol for a few years now, my DHEA-S levels were in the bottom quartile of normal. Supplementing 25mg twice per day has brought my DHEA-S levels up in the upper quartile of normal. I would recommend buying a Micronized DHEA, as the absorption is better than standard DHEA. If there's a Vita Shoppe near you, they carry a few different brands. Both are equally the same IMO.
The most abundant neurosteroids in the human body are DHEA and its sulfate ester, DHEA-S. DHEA-S acts as a neurosteroids by acting directly on neurotransmitter receptors in the brain including NMDA receptor, sigma receptor and GABA receptor. By taking DHEA at bedtime you may find you're getting more relaxed, restful sleep. By the action of GABA and NMDA ret's.