Deterring deer, lavender for sleep, poison ivy

In winter I get up at night
And dress by yellow candle-light.
In summer, quite the other way,
I have to go to bed by day.

And does it not seem hard to you,
When all the sky is clear and blue,
And I should like so much to play,
To have to go to bed by day?

–Robert Louis Stevenson (1850–94)