Anyone who has lain awake in a quiet house will recognise the situation in "Night Fears": a bedroom in the small hours, a mind that won't switch off, and a series of noises that could mean anything. Peter John Dean never shows us a monster. He shows us a frightened imagination building one out of floorboards, wind, moonlight and wallpaper, and then, in the last line, he lets the whole structure collapse. The central idea is that fear is something we make ourselves, and that it feels completely real while we are making it.
The poem's shape imitates the way panic works. It is free verse with no rhyme, and the lines are short, broken and often reduced to fragments: "Dead hearts." "The moon vanishes." "Tap-tap-tap." Many stanzas are a single line, so the poem keeps stopping, as if the speaker is holding their breath to listen. The longer sentences, such as the one about the "lips dusted with fever", stretch out like a stray thought spiralling, before another short line snaps it back. There is no rhyme to soothe us, so nothing in the sound feels settled or safe.
The first half of the poem is driven by hearing, and the most interesting thing about it is the speaker's attempt to reason. "Are they leaves on the window or fingers tapping?" is a rational question, but it already half-admits the worse answer. The bird passage is even more revealing: "Birds' feet have claws. They sound like claws. / If they were lighter, it might be a bird." The flat, almost childlike logic is a kind of bargaining. The speaker is trying to find a harmless explanation, and the weight of the sound keeps defeating it. Notice too that "my" appears only at the end of the poem. For most of it the speaker is a hidden presence, a pair of ears in the dark, and the body arrives only when the fear becomes physical.
Then the poem turns to sight, and its imagery grows stranger and more alive. The "lips dusted with fever" that "hiss at the keyhole" are probably a draught, judging by the details, but the poem never says so, and the sibilant s-sounds make the room itself seem to whisper. The starlight "bending and supplicating" is an odd, unsettling choice, since light that begs implies something is asking for entry or for mercy. Then comes the one direct command in the poem: "don't look at their eyes." It sounds like the speaker talking to themselves, a rule invented on the spot. When the moon vanishes, the shadows "soak over the room", a liquid verb that makes darkness seem to seep like water into cloth. The wallpaper faces that "squint" are the familiar trick of the mind finding faces in patterns, here turned hostile.
The sense of touch is saved for the climax. After the tapping and the cry of "Ah!", the speaker shoots their feet to the end of the bed and meets "a toad, clammy with poison." The word "clammy" is exact and horrible, and the poison is the imagination adding a final detail it has no evidence for. Then comes the deflation: "No. It is only a cold hot-water bottle." The flat, almost embarrassed tone is funny, and the relief is real. There is also a nice irony in the phrase "cold hot-water bottle", which contradicts itself. The object that was meant to give comfort has gone cold in the night and, for a moment, become a creature of nightmare.
The poem matters because it is honest about something so common that we rarely bother to write about it. It captures how the senses escalate under fear, from sound to sight to touch, and how each ordinary thing (leaves, a keyhole draught, a moonbeam, a bottle) is quietly recruited into the threat. The ending does not pretend the fear was foolish, either. The final line is a joke, but the poem has made us feel the terror so fully that the joke works as a release. We laugh at the speaker, and we also recognise ourselves.