diff --git a/src/widgets/control-center-sheet/ui/ControlCenterSheetWidget.tsx b/src/widgets/control-center-sheet/ui/ControlCenterSheetWidget.tsx
index 9ca7c8e..da95551 100644
--- a/src/widgets/control-center-sheet/ui/ControlCenterSheetWidget.tsx
+++ b/src/widgets/control-center-sheet/ui/ControlCenterSheetWidget.tsx
@@ -106,11 +106,14 @@ export const ControlCenterSheetWidget = ({
   }, [selectedSoundPresetId, soundPresets]);
 
   return (
-    <div className="space-y-4">
-      <section className="space-y-2 rounded-2xl border border-white/12 bg-black/22 p-3 backdrop-blur-md">
+    <div className="space-y-5">
+      <section className="space-y-2.5 rounded-2xl border border-white/12 bg-black/22 p-3.5 backdrop-blur-md">
         <SectionTitle title="Scene" description={selectedRoom?.name ?? '공간'} />
         <div
-          className={cn('-mx-1 flex gap-2 overflow-x-auto px-1 pb-1 snap-x snap-mandatory', reducedMotion ? '' : 'scroll-smooth')}
+          className={cn(
+            '-mx-1 flex gap-2.5 overflow-x-auto px-1 pb-1.5 snap-x snap-mandatory',
+            reducedMotion ? '' : 'scroll-smooth',
+          )}
           style={{ scrollBehavior: reducedMotion ? 'auto' : 'smooth' }}
         >
           {rooms.slice(0, 6).map((room) => {
@@ -149,9 +152,9 @@ export const ControlCenterSheetWidget = ({
         </div>
       </section>
 
-      <section className="space-y-2 rounded-2xl border border-white/12 bg-black/22 p-3 backdrop-blur-md">
+      <section className="space-y-2.5 rounded-2xl border border-white/12 bg-black/22 p-3.5 backdrop-blur-md">
         <SectionTitle title="Time" description={selectedTimerLabel} />
-        <div className="grid grid-cols-3 gap-1.5">
+        <div className="grid grid-cols-3 gap-2">
           {timerPresets.slice(0, 3).map((preset) => {
             const selected = preset.label === selectedTimerLabel;
             const locked = !isPro && PRO_LOCKED_TIMER_LABELS.includes(preset.label);
@@ -169,7 +172,7 @@ export const ControlCenterSheetWidget = ({
                   onSelectTimer(preset.label);
                 }}
                 className={cn(
-                  'relative rounded-xl border px-2 py-2 text-xs',
+                  'relative rounded-xl border px-3 py-2.5 text-xs',
                   colorMotionClass,
                   selected
                     ? 'border-sky-200/42 bg-sky-200/16 text-white'
@@ -184,9 +187,9 @@ export const ControlCenterSheetWidget = ({
         </div>
       </section>
 
-      <section className="space-y-2 rounded-2xl border border-white/12 bg-black/22 p-3 backdrop-blur-md">
+      <section className="space-y-2.5 rounded-2xl border border-white/12 bg-black/22 p-3.5 backdrop-blur-md">
         <SectionTitle title="Sound" description={selectedSound?.label ?? '기본'} />
-        <div className="flex flex-wrap gap-1.5">
+        <div className="grid grid-cols-2 gap-2 sm:grid-cols-3">
           {soundPresets.slice(0, 6).map((preset) => {
             const selected = preset.id === selectedSoundPresetId;
             const locked = !isPro && PRO_LOCKED_SOUND_IDS.includes(preset.id);
@@ -204,7 +207,7 @@ export const ControlCenterSheetWidget = ({
                   onSelectSound(preset.id);
                 }}
                 className={cn(
-                  'rounded-full border px-3 py-1.5 text-xs',
+                  'rounded-xl border px-3 py-2 text-xs',
                   colorMotionClass,
                   selected
                     ? 'border-sky-200/42 bg-sky-200/16 text-white'
@@ -219,9 +222,9 @@ export const ControlCenterSheetWidget = ({
         </div>
       </section>
 
-      <section className="space-y-2 rounded-2xl border border-white/12 bg-black/22 p-3 backdrop-blur-md">
+      <section className="space-y-2.5 rounded-2xl border border-white/12 bg-black/22 p-3.5 backdrop-blur-md">
         <SectionTitle title="Preset Packs" description="원탭 조합" />
-        <div className="grid gap-1.5">
+        <div className="grid gap-2.5">
           {QUICK_PACKS.map((pack) => {
             const locked = !isPro && pack.locked;
 
@@ -238,7 +241,7 @@ export const ControlCenterSheetWidget = ({
                   onApplyPack(pack.id);
                 }}
                 className={cn(
-                  'relative rounded-xl border border-white/16 bg-white/[0.04] px-3 py-2 text-left hover:bg-white/[0.1]',
+                  'relative rounded-xl border border-white/16 bg-white/[0.04] px-3.5 py-2.5 text-left hover:bg-white/[0.1]',
                   colorMotionClass,
                 )}
               >
diff --git a/src/widgets/space-sheet-shell/ui/SpaceSideSheet.tsx b/src/widgets/space-sheet-shell/ui/SpaceSideSheet.tsx
index db2d229..972bd80 100644
--- a/src/widgets/space-sheet-shell/ui/SpaceSideSheet.tsx
+++ b/src/widgets/space-sheet-shell/ui/SpaceSideSheet.tsx
@@ -14,6 +14,7 @@ interface SpaceSideSheetProps {
   widthClassName?: string;
   dismissible?: boolean;
   headerAction?: ReactNode;
+  overlayClassName?: string;
 }
 
 export const SpaceSideSheet = ({
@@ -26,6 +27,7 @@ export const SpaceSideSheet = ({
   widthClassName,
   dismissible = true,
   headerAction,
+  overlayClassName,
 }: SpaceSideSheetProps) => {
   const reducedMotion = useReducedMotion();
   const transitionMs = reducedMotion ? 0 : 260;
@@ -97,6 +99,7 @@ export const SpaceSideSheet = ({
             'fixed inset-0 z-40 bg-slate-950/14 backdrop-blur-[1px] transition-opacity',
             reducedMotion ? 'duration-0' : 'duration-[240ms]',
             visible ? 'opacity-100' : 'pointer-events-none opacity-0',
+            overlayClassName,
           )}
         />
       ) : (
@@ -106,6 +109,7 @@ export const SpaceSideSheet = ({
             'fixed inset-0 z-40 bg-slate-950/8 backdrop-blur-[1px] transition-opacity',
             reducedMotion ? 'duration-0' : 'duration-[240ms]',
             visible ? 'opacity-100' : 'opacity-0',
+            overlayClassName,
           )}
         />
       )}
diff --git a/src/widgets/space-tools-dock/model/getQuickSoundPresets.ts b/src/widgets/space-tools-dock/model/getQuickSoundPresets.ts
new file mode 100644
index 0000000..9951e67
--- /dev/null
+++ b/src/widgets/space-tools-dock/model/getQuickSoundPresets.ts
@@ -0,0 +1,21 @@
+import { PRO_LOCKED_SOUND_IDS } from '@/entities/plan';
+import type { SoundPreset } from '@/entities/session';
+
+const QUICK_SOUND_FALLBACK_IDS = ['rain-focus', 'deep-white', 'silent'] as const;
+
+const isQuickAvailablePreset = (preset: SoundPreset | undefined): preset is SoundPreset => {
+  if (!preset) {
+    return false;
+  }
+
+  return !PRO_LOCKED_SOUND_IDS.includes(preset.id);
+};
+
+export const getQuickSoundPresets = (presets: SoundPreset[], selectedPresetId: string) => {
+  const uniquePresetIds = Array.from(new Set([selectedPresetId, ...QUICK_SOUND_FALLBACK_IDS]));
+
+  return uniquePresetIds
+    .map((presetId) => presets.find((preset) => preset.id === presetId))
+    .filter(isQuickAvailablePreset)
+    .slice(0, 3);
+};
diff --git a/src/widgets/space-tools-dock/ui/SpaceToolsDockWidget.tsx b/src/widgets/space-tools-dock/ui/SpaceToolsDockWidget.tsx
index 958c165..e20c203 100644
--- a/src/widgets/space-tools-dock/ui/SpaceToolsDockWidget.tsx
+++ b/src/widgets/space-tools-dock/ui/SpaceToolsDockWidget.tsx
@@ -12,6 +12,7 @@ import { ControlCenterSheetWidget } from '@/widgets/control-center-sheet';
 import { SpaceSideSheet } from '@/widgets/space-sheet-shell';
 import type { SpaceAnchorPopoverId, SpaceUtilityPanelId } from '../model/types';
 import { applyQuickPack } from '../model/applyQuickPack';
+import { getQuickSoundPresets } from '../model/getQuickSoundPresets';
 import { ANCHOR_ICON, formatThoughtCount, RAIL_ICON, UTILITY_PANEL_TITLE } from './constants';
 import { InboxToolPanel } from './panels/InboxToolPanel';
 interface SpaceToolsDockWidgetProps {
@@ -68,6 +69,10 @@ export const SpaceToolsDockWidget = ({
     );
   }, [selectedPresetId]);
 
+  const quickSoundPresets = useMemo(() => {
+    return getQuickSoundPresets(SOUND_PRESETS, selectedPresetId);
+  }, [selectedPresetId]);
+
   useEffect(() => {
     if (!openPopover) {
       return;
@@ -389,12 +394,12 @@ export const SpaceToolsDockWidget = ({
 
               {openPopover === 'sound' ? (
                 <div
-                  className="mb-2 w-[min(300px,calc(100vw-2rem))] rounded-2xl border border-white/14 bg-slate-950/74 p-3 shadow-[0_18px_44px_rgba(2,6,23,0.4)] backdrop-blur-xl animate-[popover-rise_220ms_ease-out] motion-reduce:animate-none"
+                  className="mb-2 w-[min(288px,calc(100vw-2rem))] rounded-2xl border border-white/14 bg-slate-950/74 p-3 shadow-[0_18px_44px_rgba(2,6,23,0.4)] backdrop-blur-xl animate-[popover-rise_220ms_ease-out] motion-reduce:animate-none"
                   style={{ position: 'absolute', bottom: 'calc(100% + 0.5rem)', right: 0 }}
                 >
-                  <p className="text-[11px] text-white/56">사운드 프리셋</p>
+                  <p className="text-[11px] text-white/56">빠른 사운드 전환</p>
                   <div className="mt-2 flex flex-wrap gap-1.5">
-                    {SOUND_PRESETS.slice(0, 6).map((preset) => {
+                    {quickSoundPresets.map((preset) => {
                       const selected = preset.id === selectedPresetId;
 
                       return (
@@ -403,6 +408,7 @@ export const SpaceToolsDockWidget = ({
                           type="button"
                           onClick={() => {
                             onSelectPreset(preset.id);
+                            pushToast({ title: `${preset.label}로 전환했어요.` });
                             setOpenPopover(null);
                           }}
                           className={cn(
@@ -417,15 +423,6 @@ export const SpaceToolsDockWidget = ({
                       );
                     })}
                   </div>
-                  <div className="mt-2 flex justify-end">
-                    <button
-                      type="button"
-                      onClick={() => openUtilityPanel('control-center')}
-                      className="text-[11px] text-white/62 transition-colors hover:text-white/88"
-                    >
-                      Control Center
-                    </button>
-                  </div>
                 </div>
               ) : null}
             </div>
@@ -442,6 +439,8 @@ export const SpaceToolsDockWidget = ({
             <PlanPill plan={plan} onClick={handlePlanPillClick} />
           ) : undefined
         }
+        widthClassName={utilityPanel === 'control-center' ? 'w-[min(408px,94vw)]' : undefined}
+        overlayClassName={utilityPanel === 'control-center' ? 'bg-slate-950/6 backdrop-blur-none' : undefined}
         onClose={() => setUtilityPanel(null)}
       >
         {utilityPanel === 'control-center' ? (