Early
to bed and early to rise—that's been my philosophy ever since I was
able to set my own sleep schedule. One of my boyfriends once called me
"solar powered," because I always rose just after dawn and felt my
energy start to wane as soon as sunset approached. To me, mornings are
the best part of the day, and nights are only good for one thing: sleeping!
So
for me, one of the worst parts of insomnia is that I'm forced to be
awake during the night—when, even if I'm not sleepy in the slightest, I
still have absolutely no motivation to do anything. Time awake at night
is time completely wasted.
To
implement sleep restriction properly, I had to set a "sleep window"
during which I was allowed to be in bed. This sleep window was supposed
to equal the approximate number of hours of sleep I averaged every
night, plus 30 minutes for falling asleep—but never shorter than about 5.5 hours, because I wasn't supposed to deprive myself of too much sleep, should it miraculously occur.
The sleep window was supposed to start and end at the same time every
night, so that it could be the basis for a solid circadian rhythm. The
start time was also known as my "earliest in-bed time." I was allowed to
go to bed later than that if I wasn't sleepy yet, but was not allowed
to go to bed earlier. The end time was my "latest out-of-bed
time," because I was allowed to get up earlier if I was ready, but never
supposed to sleep in past it.
The
out-of-bed-time is the most important part of the sleep window, because
getting up at the same time every day is the best way to set your
internal clock and help you sleep at night. When I started this process,
it was the height of summer, and the sun was rising shortly after 5am
every day. Being solar powered, I would have preferred to set my wake-up
time to around then, but there was a confounding factor: my social
life.
It was a
Hot Vax Summer, and I was taking every opportunity to go to concerts and
other late-night activities. I was also dating this guy who happened to
be a night owl. I wanted to align my sleep schedule more closely with
his so we could have more quality time together, so I opted for a later
end time of 7:30. I knew that on the nights I wasn't going out, I'd
probably be able to wake up closer to 6:30, but that extra hour gave me a
little cushion so I would still get a modicum of sleep on the
nights I wanted to have fun.
The
week I started my sleep training, I was averaging 4.3 hours of sleep a
night, which meant I should set my sleep window to the minimum
recommended time of 5.5 hours. Counting back from 7:30, that meant my
bedtime would have be be no earlier than 2AM. Two A.M.! Every
night! This early bird just about had a hairy canary before deciding
1:30 was good enough. If the sun was usually going to wake me up before
7, that made for a solid 5.5-hour sleep window most days. If a few days,
I were to sleep an extra half-hour, it probably wouldn't ruin me.
What
did seem to nearly ruin me, however, was actually staying awake. For someone who could easily lie
sleepless in bed until dawn, I had a surprisingly difficult time staying
up until 1:30.
I
began doing all my exercise late in the evening, just to keep me busy. I
would wait until 11 pm and take my dog for a walk (fortunately we have a
light-up leash that was practically made for this moment!). I would get
home and do yoga at 12. Sometimes I would just pace the kitchen until
bedtime approached. Occasionally a friend would call, and we'd have
lengthy conversations that kept my mind off my tiredness. But often I
would often get so exhausted that all I could do was sit on the couch
and stare into space. At these times, I often accidentally nodded off
for a few minutes.
One of the
essential rules for recovering from insomnia is that you should never
stay in bed when you are unable to sleep (I think I'll do a whole post
on that topic, so hang on and find out why later), so at this point, I'd
be obligated to get back out of bed. I'd return to the couch, sitting
with that familiar dizzy, discombobulated, burning-eyed feeling that I get when my brain won't let my body sleep, until finally I felt calm enough to go back to bed for another try.
With results like that, was sleep restriction actually good for anything? Well, it's hard to say because it wasn't the only CBTi
technique I was trying, but over the course of a few weeks, I did start
to sleep longer on average. There were two things that sleep
restriction definitely accomplished for me: 1 is that it helped me
recognize what true (extreme) sleepiness feels like, so I could know
what's an appropriate time to go to bed (hint: not when I'm just lazy
and bored and tired of being awake!). 2 is that it helped me internalize
the idea that you don't need to hop into bed as soon as your usual
bedtime arrives. If you stay up later because you're not tired, it's
totally fine—as long as you wake up at the same time in the morning to
anchor your circadian cycle.
Over
time, the sleepless portions of my night got smaller and smaller. When I was sleeping at least 85% of the time I was in bed, I was
allowed to extend my sleep window. In early July, I pushed my bedtime up
to 1:15, then two weeks later, 1:00. Only a few days after that, I
pushed it again to 12:15 and then to midnight. By early August, I felt
like I was making so much progress, that I stopped enforcing a bedtime, and just focused on waiting until I was sleepy and not
really worrying too much about the clock. Nowadays, my bedtime seems to
have stabilized at around 11 PM—more or less what it was before my
insomnia started.
But if I'm being honest with myself, I have to say that I still want to do better!
During
those early days of sleep restriction, I came to appreciate just how
much I value the sunshine. I deeply regretted that I was missing out on
an hour or more of perfectly good daylight by waking up so late, and I
hated that I was spending so many of my waking hours in the pitch dark,
just counting down the minutes until I could crawl into bed.
When I first started my sleep training, I was asked what my goals were. I said something about wanting to get enough sleep that I wouldn't feel like a zombie all day. To my surprise, I accomplished that very early in the training, so my goals quickly shifted: Now I want nothing more than to be able to wake up as soon as it's light and to sleep when it's dark. After having been a reluctant night owl for several months, I believe more confidently than ever that the mornings are the best part of the day and the nights are good for nothing but sleep! I never want to waste another hour of precious sunlight again!
My old alarm clock / future self! |
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