Content reviewed by the PillRelax Healthcare Team | Last reviewed: September 2026
Both Zopiclone and Zolpidem are non-benzodiazepine hypnotics prescribed for insomnia in the UK. Though they work via similar mechanisms, there are meaningful differences.
Quick Comparison
| Factor | Zopiclone | Zolpidem |
|---|---|---|
| Standard UK dose | 7.5mg | 10mg |
| Onset of action | 30-60 minutes | 15-30 minutes |
| Duration | 6-8 hours | 4-6 hours |
| Best for | Sleep maintenance insomnia | Sleep onset insomnia |
| Bitter taste | Common | Less common |
Which Is Better for Falling Asleep?
Zolpidem has a faster onset (15-30 minutes vs 30-60 minutes), making it marginally better for people whose primary problem is difficulty falling asleep. However, its shorter duration means some people wake earlier.
Which Is Better for Staying Asleep?
Zopiclone’s longer half-life generally makes it more suitable for people who fall asleep easily but wake frequently during the night.
Frequently Asked Questions
Can I switch from Zopiclone to Zolpidem?
Switching is possible under medical supervision. Do not switch without consulting a healthcare professional.
Where can I buy Zopiclone or Zolpidem in the UK?
Both are available from regulated UK online pharmacies following a prescription or consultation. Browse PillRelax Sleeping Pills
