You have discovered one of the many joys of cruising because you are gaining trust in your ability to anchor, and in your ground tackle.
I typically slept well at anchor, but always with a heightened level of situational awareness.
On prior boats in the days before GPS
[and then for a time, dithered GPS...] and hence no anchor alarms, a tell-tale compass
was somewhat handy to help with orientation when awakened at anchor and during a passage
Today I set 2+ separate anchor alarms [Always Drag Queen and Vesper AIS
, and if within cell coverage, our vessel monitoring system].
I also have a tablet with built-in GPS running navigation software
next to my berth.
If expecting weather
or vessel traffic, or if either occur unexpectedly, I set zone alarm(s) on the RADAR
[our 4G consumes very little power...] to warn of my or other boats encroaching on my comfort zone. The RADAR
image is also viewable on the tablet next to my berth...
I also broadcast our position on AIS
24/7 when away from the dock. The Vesper allows us to tune alarm thresholds for different scenarios, so while at anchor we don't have any distant vessel alerts waking us up- only potential close encounters...
To enhance our vessel's visibility while at anchor in the dark, in addition to the masthead anchor light, we also deploy 2 additional anchor lights about 7 feet above the deck
on the bow and stern. The first thing we do if there is vessel traffic encroaching on our safe zone in the dark is turn on our two LED deck
lights [we are a ketch- one on each mast...] We have a switch next to our berth.
I can also sound the air horn [and a klaxon] from my cabin
if necessary if a quick wake-up call is warranted for another vessel... [Set up by the previous owner for intruder security
All of these modern electronics
consume so little power that I don't hesitate to avail myself of their charms when needed.
We also post anchor watches in times of concern regardless of reason, and I check the physical world anytime I have a 'feeling' [What was that?] or am up for any other reasons...
Since we 'live' in our pilothouse while at anchor, we are always very aware of our surroundings. And if nervous, I can sleep there and with just a sit-up, quickly glance at everything around me.
Always anchoring as if it will blow 60 kts with excellent, proven ground tackle, with a selection of electronic aids to back-up to physical monitoring enhance our level of relaxation and comfort at anchor. [And we are typically the only boat at anchor where we are exploring these days...]
Enjoy your new found comfort and sleep well, but with awareness!