async function laddaSovlage() {
  const res = await apiFetch('/api/sleep');
  if (!res) return;
  const d = await res.json();
  document.getElementById('sleep-enabled').checked = !!d.enabled;
  document.getElementById('sleep-start').value     = d.start || '22:00';
  document.getElementById('sleep-end').value       = d.end   || '07:00';
}

async function sparaSovlage() {
  const status = document.getElementById('sleep-status');
  status.textContent = 'Sparar...';
  const res = await apiFetch('/api/sleep', {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({
      enabled: document.getElementById('sleep-enabled').checked,
      start:   document.getElementById('sleep-start').value,
      end:     document.getElementById('sleep-end').value,
    }),
  });
  if (!res) return;
  status.textContent = '✓ Sparat';
  setTimeout(() => { status.textContent = ''; }, 3000);
}